Yesterday, I turned a bowl from red elm that grew at Wheatland, President Buchanan's home. The bowl is 7 inches wide and 2.5 inches deep. I cut the bowl to depth and had a fairly good curve following the outside, just shallower. I stopped the lathe and there is a small bark inclusion on the bowl interior which is not there on the bottom exterior. The wall thickness if 3/8 as well as the bottom. I can not really go deeper in hopes that I will get beneath the inclusion. It is about 7/16 of an inch round. I can: 1. treat it with sealer and let it as it is and finish the bowl 2. cut a shallow hole and fill it with a plug, then finish the bowl. (I have plug cutters) 3. drill all the way through and install a plug. I suppose leaving it natural would be best. Don't know how a plug would look, even if from the same wood and I tried to match the grain color and direction. Suggestions?